A comparison of large Eddy simulations with a standard k–ε Reynolds-averaged Navier–Stokes model for the prediction of a fully developed turbulent flow over a matrix of cubes

By Y. Cheng, Fue-Sang Lien, Eugene Yee, R. Sinclair. 2003

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CFD simulation of airflow over a regular array of cubes. Part I: Three-dimensional simulation of the flow and validation with wind-tunnel measurements (2007, background): “In particular they can overestimate turbulence energy upstream of stagnation points and do not capture accurately separationandreattachmentprocesses.Ontheotherhand,moreaccurateLESsimulations can reproduce such details of the flow in a more accurate way but they are computationally more expensive, (e”
Numerical Modelling of the Turbulent Flow Developing Within and Over a 3-D Building Array, Part I: A High-Resolution Reynolds-Averaged Navier—Stokes Approach (2004, methodology): “Cheng et al. (2003) applied both RANS (kmodel) and LES with a dynamic Smagorinsky subgrid model to predict the fullydeveloped flow over a matrix of cubes immersed in a plane channel flow.”
LES and RANS for Turbulent Flow over Arrays of Wall-Mounted Obstacles (2006, unknown): “[10] and Meinders and Hanjalic [24], for example, examined a case of aligned cubes with a much lower area density of 6.”